# Knight - Marshall Forest - PIEC - ITRDB GA018 #---------------------------------------------------- # World Data Service for Paleoclimatology, Boulder # and # NOAA Paleoclimatology Program # National Centers for Environmental Information (NCEI) #---------------------------------------------------- # Template Version 4.0 # Encoding: UTF-8 # NOTE: Please cite original publication, NOAA Landing Page URL, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, study title, NOAA Landing Page URL, and date accessed. # # Description/Documentation lines begin with # # Data lines have no # # # NOAA_Landing_Page: https://www.ncei.noaa.gov/access/paleo-search/study/13811 # Landing_Page_Description: NOAA Landing Page of this file's parent study, which includes all study metadata. # # Study_Level_JSON_Metadata: https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/json/noaa-tree-13811.json # Study_Level_JSON_Description: JSON metadata of this data file's parent study, which includes all study metadata. # # Data_Type: Tree Ring # # Dataset_DOI: # # Science_Keywords: drought #-------------------- # Resource_Links # # Data_Download_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/ga018a-crn-noaa.txt # Data_Download_Description: Raw Measurements - NOAA Template File; ga018a-crn-noaa.txt # # Related_Online_Resource: https://www.ncei.noaa.gov/pub/data/paleo/treering/chronologies/northamerica/usa/ga018a.crn # Related_Online_Description: CRN File; Chronology - Tucson Decadal File # #-------------------- # Contribution_Date # Date: 2012-05-22 #-------------------- # File_Last_Modified_Date # Date: 2012-05-22 #-------------------- # Title # Study_Name: Knight - Marshall Forest - PIEC - ITRDB GA018 #-------------------- # Investigators # Investigators: Knight, T.A. #-------------------- # Description_Notes_and_Keywords # Description: NOAA Template Chronology file added 2018-12-20. NOAA Template Raw Measurements file added 2019-02-08. #-------------------- # Publication # Authors: Pederson, N., A.R. Bell, T.A. Knight, C. Leland, N. Malcomb, K.J. Anchukaitis, K. Tackett, J. Scheff, A. Brice, B. Catron, W. Blozan, and J. Riddle # Journal_Name: Environmental Research Letters # Published_Title: A long-term perspective on a modern drought in the American Southeast # Published_Date_or_Year: 2012 # Volume: 7 # Pages: # Issue: 1 # Report_Number: 014034 # DOI: 10.1088/1748-9326/7/1/014034 # Full_Citation: None # Abstract: The depth of the 2006-9 drought in the humid, southeastern US left several metropolitan areas with only a 60-120 day water supply. To put the region's recent drought variability in a long-term perspective, a dense and diverse tree-ring network-including the first records throughout the Apalachicola-Chattahoochee-Flint river basin - is used to reconstruct drought from 1665 to 2010 CE. The network accounts for up to 58.1% of the annual variance in warm-season drought during the 20th century and captures wet eras during the middle to late 20th century. The reconstruction shows that the recent droughts are not unprecedented over the last 346 years. Indeed, droughts of extended duration occurred more frequently between 1696 and 1820. Our results indicate that the era in which local and state water supply decisions were developed and the period of instrumental data upon which it is based are amongst the wettest since at least 1665. Given continued growth and subsequent industrial, agricultural and metropolitan demand throughout the southeast, insights from paleohydroclimate records suggest that the threat of water-related conflict in the region has potential to grow more intense in the decades to come. #-------------------- # Funding_Agency # Funding_Agency_Name: # Grant: #-------------------- # Site_Information # Site_Name: Marshall Forest # Location: Georgia # Northernmost_Latitude: 32.2506 # Southernmost_Latitude: 32.2506 # Easternmost_Longitude: -85.1989 # Westernmost_Longitude: -85.1989 # Elevation_m: 262 #-------------------- # Data_Collection # Collection_Name: GA018 # First_Year: 1730 # Last_Year: 2001 # Time_Unit: CE # Core_Length_m: # Parameter_Keywords: ring width # Notes: #-------------------- # Species # Species_Name: Pinus echinata Mill. # Common_Name: shortleaf pine # Tree_Species_Code: PIEC #-------------------- # Variables # # PaST_Thesaurus_Download_Resource: https://www.ncei.noaa.gov/access/paleo-search/skos/past-thesaurus.rdf # PaST_Thesaurus_Download_Description: Paleoenvironmental Standard Terms (PaST) Thesaurus terms, definitions, and relationships in SKOS format. # # Data variables follow that are preceded by '##' in columns one and two. # Variables format: shortname-tab-var components: what, material, error, units, seasonality, data type, detail, method, C or N for Character or Numeric data) # ## age_CE age,,,year Common Era,,tree ring,,,N, ## trsgi tree ring standardized growth index,,,,,tree ring,composited,standard chronology method,N, ## numsamp number of samples,,,count,,tree ring,,,N, #--------------------- # Data: # Missing_Values: NA age_CE trsgi numsamp 1730 0.911 1 1731 0.954 1 1732 0.952 1 1733 0.873 1 1734 1.178 1 1735 1.173 1 1736 0.998 1 1737 1.162 1 1738 0.958 1 1739 0.829 2 1740 1.076 3 1741 1.161 3 1742 1.157 3 1743 1.08 3 1744 0.572 3 1745 1.002 3 1746 1.134 3 1747 0.943 3 1748 0.857 3 1749 1.194 3 1750 1.099 3 1751 0.716 3 1752 0.755 3 1753 0.912 4 1754 1.012 4 1755 0.973 4 1756 0.952 4 1757 1.003 4 1758 0.801 4 1759 0.995 4 1760 0.941 4 1761 0.928 4 1762 0.898 4 1763 0.958 4 1764 0.906 4 1765 0.676 4 1766 0.699 4 1767 0.737 4 1768 0.77 4 1769 0.995 4 1770 1.14 4 1771 1.25 4 1772 0.957 4 1773 0.953 4 1774 0.875 4 1775 0.998 4 1776 1.292 4 1777 1.276 5 1778 1.286 5 1779 1.057 5 1780 0.772 6 1781 1.07 6 1782 1.223 7 1783 1.184 7 1784 0.868 7 1785 0.974 7 1786 1.169 7 1787 1.113 7 1788 1.096 7 1789 0.831 8 1790 0.928 9 1791 1.005 9 1792 1.046 10 1793 1.187 10 1794 0.973 11 1795 0.932 12 1796 0.973 12 1797 0.705 12 1798 0.859 12 1799 1.059 13 1800 1.016 14 1801 1.032 15 1802 0.893 15 1803 0.636 15 1804 1.239 16 1805 1.231 17 1806 1.1 19 1807 1.065 19 1808 1.158 20 1809 1.047 20 1810 0.846 20 1811 0.957 20 1812 1.165 20 1813 1.074 20 1814 1.285 21 1815 1.09 23 1816 1.112 24 1817 1.226 24 1818 1.117 24 1819 1.148 24 1820 1.061 25 1821 0.952 27 1822 0.858 27 1823 0.914 28 1824 0.771 28 1825 0.821 29 1826 0.705 29 1827 0.951 30 1828 1.077 30 1829 1.21 30 1830 1.021 30 1831 0.899 30 1832 0.883 31 1833 0.826 31 1834 0.987 32 1835 0.964 33 1836 1.087 33 1837 0.952 33 1838 0.725 33 1839 0.879 33 1840 1.019 33 1841 1.193 33 1842 1.141 33 1843 0.975 34 1844 1.071 34 1845 0.994 35 1846 1.105 35 1847 1.021 35 1848 0.938 35 1849 0.934 35 1850 1.005 36 1851 0.828 36 1852 1.137 36 1853 0.957 37 1854 0.792 37 1855 0.8 38 1856 0.796 39 1857 1.014 39 1858 1.021 39 1859 1.203 40 1860 1.094 41 1861 1.287 41 1862 1.051 42 1863 0.951 42 1864 1.181 43 1865 0.684 43 1866 0.745 44 1867 0.858 44 1868 1.017 44 1869 0.848 44 1870 1.218 44 1871 1.258 44 1872 1.036 44 1873 0.997 44 1874 1.159 44 1875 0.962 44 1876 1.017 44 1877 1.098 44 1878 1.08 45 1879 0.925 45 1880 1.045 45 1881 1.019 45 1882 1.225 45 1883 1.018 45 1884 0.949 45 1885 0.873 45 1886 1.081 45 1887 0.942 46 1888 1.269 46 1889 1.321 46 1890 0.88 46 1891 1.013 46 1892 1.101 46 1893 1.098 46 1894 1.028 46 1895 1.133 46 1896 0.768 46 1897 1.069 46 1898 0.945 46 1899 0.853 46 1900 1.014 46 1901 1.311 46 1902 0.839 46 1903 0.808 46 1904 0.808 46 1905 0.781 46 1906 1.008 46 1907 0.958 46 1908 1.064 46 1909 1.118 46 1910 0.811 46 1911 0.736 46 1912 1.033 46 1913 1.187 46 1914 1.093 46 1915 1.053 46 1916 0.946 46 1917 0.832 46 1918 0.887 46 1919 1.015 46 1920 1.067 46 1921 0.799 46 1922 0.902 46 1923 0.828 46 1924 0.886 46 1925 0.731 46 1926 1.226 46 1927 0.88 46 1928 1.027 46 1929 1.044 46 1930 1.144 46 1931 1.03 46 1932 1.142 46 1933 0.97 46 1934 0.907 46 1935 1.039 46 1936 0.742 46 1937 0.911 46 1938 0.956 46 1939 1.074 46 1940 1.159 46 1941 1.008 46 1942 1.06 46 1943 1.035 46 1944 0.847 46 1945 0.999 46 1946 0.921 46 1947 0.844 46 1948 0.941 46 1949 1.064 46 1950 1.608 46 1951 1.153 46 1952 1.345 46 1953 1.363 46 1954 1.118 46 1955 1.107 46 1956 1.023 46 1957 0.998 46 1958 1.261 46 1959 1.177 46 1960 0.508 46 1961 0.793 46 1962 0.833 46 1963 0.989 46 1964 0.988 46 1965 0.926 46 1966 0.92 46 1967 0.911 46 1968 0.926 46 1969 1.028 46 1970 1.184 46 1971 1.016 46 1972 0.974 46 1973 1.007 46 1974 1.148 46 1975 0.981 46 1976 1.299 46 1977 0.96 46 1978 1 46 1979 0.593 46 1980 0.968 46 1981 1.204 45 1982 1.022 45 1983 0.835 45 1984 1.211 45 1985 1.026 45 1986 0.732 45 1987 0.702 45 1988 0.75 45 1989 1.051 45 1990 1.033 45 1991 1.015 45 1992 1.09 45 1993 0.818 45 1994 1.091 45 1995 0.884 45 1996 0.896 45 1997 0.925 45 1998 1.077 45 1999 1.254 45 2000 0.956 45 2001 1.148 44